10th Grade Scientific Notation Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 10th Grade exponents & scientific notation worksheet.
10th Grade Scientific Notation Worksheet — Level 1 — Practice Set 4 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 3,400,000 in scientific notation.
Answer: 3.4 × 106
Move the decimal point 6 places.
2.Write 2.3 × 106 as an ordinary number.
Answer: 2,300,000
3.Write 8.4 × 105 as an ordinary number.
Answer: 840,000
4.Write 5.1 × 103 as an ordinary number.
Answer: 5,100
5.Write 820 in scientific notation.
Answer: 8.2 × 102
Move the decimal point 2 places.
6.Write 4.7 × 102 as an ordinary number.
Answer: 470
7.Write 1.1 × 106 as an ordinary number.
Answer: 1,100,000
8.Write 150,000 in scientific notation.
Answer: 1.5 × 105
Move the decimal point 5 places.
9.Write 9.1 × 106 as an ordinary number.
Answer: 9,100,000
10.Write 5 × 102 as an ordinary number.
Answer: 500
11.Write 3.8 × 103 as an ordinary number.
Answer: 3,800
12.Write 2.7 × 102 as an ordinary number.
Answer: 270
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.